Malfunctions - Wacker Neuson 2503 Operator's Manual

4

Malfunctions

Problem
Engine does not start or is not easy to start
Engine starts, but does not run smoothly or faultless
Engine overheats. Temperature warning system
responds
Insufficient engine power
Engine does not run on all cylinders
OM 25-3503 us – Edition 4.1 * 2503_3503b410.fm
The information given in this chapter is provided for maintenance personnel, for fast and
reliable detection of malfunctions and their appropriate repair.
Repairs must only be performed by authorized personnel.
Wrong SAE grade of engine lubrication oil
Empty fuel tank
Fuel grade does not comply with specifications
Malfunctioning or empty battery
Loose or oxidized cable connections in starter circuit
Malfunctioning starter, or pinion does not engage
Wrong valve clearance
Malfunctioning fuel injector
Malfunctioning cutoff solenoid
Malfunctioning fuse
Fuel grade does not comply with specifications
Dirty fuel filter
Wrong valve clearance
Injection line leaks
Malfunctioning fuel injector
Oil level too low
Oil level too high
Dirty air filter
Dirty radiator fins
Coolant level too low
Cooling system leaks
Malfunctioning fan, torn or loose V-belt
Resistance in cooling system too high, flow capacity too low
Malfunctioning fuel injector
Oil level too high
Fuel grade does not comply with specifications
Dirty fuel filter
Dirty air filter
Wrong valve clearance
Injection line leaks
Malfunctioning fuel injector
Admissible soot load value exceeded (Tier IV only)
Malfunctioning fuel injection pump
Injection line leaks
Malfunctioning fuel injector
Malfunctions
Possible causes See
5-35
5-2
5-35
5-24
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6-6
5-35
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5-5
5-5
5-11
5-7
5-8
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5-5
5-35
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5-11
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3-109
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4-1